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21. 发明专利

JPH0912519A PRODUCTION OF 1-ALKYLAMINO-4-BROMOANTHRAQUINONE 失效
公开(公告)号：JPH0912519A
公开(公告)日：1997-01-14
申请号：JP15740095
申请日：1995-06-23
申请人： MITSUI TOATSU CHEMICALS
发明人： KURODA SHIZUO , SHIMOKAWA YASUSHI , OGISO AKIRA , ITO NAOTO
IPC分类号： C07C221/00 , C07C225/34
摘要： PURPOSE: To economically and inexpensively obtain the subject compound in high purity in terms of an industrial use in high yield with causing a small amount of industrial waste by using an inorganic acid as a solvent, useful as a liquid crystal material, etc. CONSTITUTION: In reacting (A) a 1-alkylaminoanthraquinone (preferably 1- methylaminoanthraquinone) with bromine, (B) an inorganic acid is used as a solvent and preferably (C) a surfactant is added to the reaction system. Examples of component B includes 1-37wt.% aqueous solution of sulfuric acid, 1-50wt.% aqueous solution of hydrobromic acid or 1-98wt.% aqueous solution of sulfuric acid. The amount of the component B is 3-50 times as much as that of the component A. The reaction temperature is preferably 0-80 deg.C. For example, β-naphthol-based anionic surface, etc., are preferably used as the component C.

22. 发明专利

JPH0848892A STYRYL-BASED MONOAZO COMPOUND AND METHOD FOR DYEING HYDROPHILIC FIBER MATERIAL USING THE SAME COMPOUND 失效
公开(公告)号：JPH0848892A
公开(公告)日：1996-02-20
申请号：JP18454894
申请日：1994-08-05
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , OGISO AKIRA , SHIMOKAWA YASUSHI , TAKUMA HIROSUKE
IPC分类号： C09B29/085 , C09B29/08 , C09B56/16
摘要： PURPOSE:To obtain a new compound excellent in dyeing property to hydrophobic fibers, especially polyester fibers, etc., capable of providing a dyed material having bright Magenta color and excellent in fastness, especially fastness to light and useful as a disperse dye. CONSTITUTION:This styryl-based monoazo compound is expressed by formula I(R is H, a 1-4C alkyl, etc.; R and R are each H, a halogen, etc.; R and R are each H, a 6-8C aryl, etc.), e.g. a compound of formula II. This compound is obtained by reacting a dicyanoethenyl-containing aniline derivative of formula III, e.g. 4-(2,2dicyanoethenyl)aniline with a nitrous acid salt, etc., normally in a solvent comprising mineral acids, e.g. sulfuric acid at -20 to 30 deg.C to diazotize the aniline derivative and subjecting the resultant diazo compound to diazocoupling with an Nsubstituted aniline derivative such as 3-(N-N- diallylamino)-acetanilide, normally at -20 to 30 deg.C, preferably under acidic conditions of pH 1-5.

23. 发明专利

JPH07286105A QUINOPHTHALONE-BASED COMPOUND AND POLARIZING FILM USING THE SAME 失效
公开(公告)号：JPH07286105A
公开(公告)日：1995-10-31
申请号：JP3232895
申请日：1995-02-21
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , IMAI RIHOKO , MISAWA TSUTAYOSHI , OI TATSU , MATSUZAKI YORIAKI , ITO NAOTO
IPC分类号： G02B5/30 , C09B25/00 , C09K19/60
摘要： PURPOSE:To provide an orangy yellow quinophthalone-based compound, expressed by a specific formula, having excellent polarizing performances, excellent in durability, having the absorption maximum on the long wavelength side and useful as a polarizing film for liquid crystal displays. CONSTITUTION:This compound is expressed by the formula {R1 to R5 are each H, a halogen, OH, a (branched) alkyl, a (substituted) cycloalkyl, a halogenated alkyl, an alkoxyalkyl, an alkoxy, nitro, amino, an alkylamino, carboxyl, an alkoxycarbonyl, aminocarbonyl, an alkylaminocarbonyl, an alkylcarbonylamino, an alkylcarbonyloxy or cyano; R6 to R17 are each H, a halogen, OH, a (halogenated) alkyl, an alkoxy, nitro, an (alkyl)amino, a (alkoxy)carbonyl, an (alkyl) aminocarbonyl, an alkylcarbonyloxy or cyano; (m) and (n) are each 0 or 1; A is a substituent group, preferably CONHQ1 [Q1 is H, a (branched) alkyl, a (substituted) cycloalkyl, etc.], etc.}.

24. 发明专利

JPH07207169A AZO DYE FOR POLARIZATION FILM AND POLARIZATION FILM USING THE SAME 失效
公开(公告)号：JPH07207169A
公开(公告)日：1995-08-08
申请号：JP152894
申请日：1994-01-12
申请人： MITSUI TOATSU CHEMICALS
发明人： MATSUZAKI YORIAKI , OI TATSU , MISAWA TSUTAYOSHI , OGISO AKIRA , IMAI RIHOKO , ITO NAOTO
IPC分类号： G02B5/30 , C09B29/01 , C09B31/00 , C09B31/02
摘要： PURPOSE:To obtain an azo dye for a polarization film useful as a polarization film for liquid crystal display, expressed by a specific formula, having excellent polarization ability and durability and excellent in heat resistant dimensional stability, heat resistance in moisture, etc. CONSTITUTION:The color material is expressed by the formula I {R1 to R8 are each H, an alkyl, alkoxy or halogen; R9 to R12 are each H, an alkyl, alkoxy, halogen, OH or alkylcarbonylamino; m is 0 or 1; A is the formula II, the formula III, etc., [R13 is H, a (cyclo)alkyl or (substituted) aryl; Q is a (substituted) aromatic ring; X1 is O or S]; K is a coupler of the formula IV [R16 to R19 are each H, an alkyl, alkoxy, halogen, OH or alkylcarbonylamino; R20 and R21 are each H, an (alkoxy)alkyl, cyanoalkyl, hydroxyalkyl, alkylcarboxyalkyl or aralkyl, etc.}. Here, e.g. the objective dye can be obtained by coupling a compound of the formula V with the coupler K.

25. 发明专利

JPH06337311A PRODUCTION OF POLARIZING FILM 失效
公开(公告)号：JPH06337311A
公开(公告)日：1994-12-06
申请号：JP12564093
申请日：1993-05-27
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , MISAWA TSUTAYOSHI , IMAI RIHOKO , ITO NAOTO
IPC分类号： G02B5/30
摘要： PURPOSE:To provide a production method of a polarizing film comprising polyvinylalcohol film as the base material and having excellent heat resistance, heat and moisture resistance, durability, and polarizing performance. CONSTITUTION:A polyvinylalcohol film on which a polarizing element is adsorbed is uniaxially oriented in an aq. soln. of boric acid of low concn. Then the film is held in an aq. soln. of boric acid of higher concn. than the first soln. and then heat treated to obtain the polarizing film.

26. 发明专利

JPH06242318A COLOR FILTER HAVING POLARIZING CAPABILITY 失效
公开(公告)号：JPH06242318A
公开(公告)日：1994-09-02
申请号：JP31779993
申请日：1993-12-17
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , OGISO AKIRA , IMAI RIHOKO , ITO NAOTO
IPC分类号： G02B5/20 , G02B5/30
摘要： PURPOSE:To obtain a color filter having high transmitting performance, high durability and polarizing capability by combining a dyestuff for color filter having spectral transmission performance and a dichroic dyestuff corresponding thereto. CONSTITUTION:This color filter consists of the dyestuff matter having spectral transmission performance, the dichronic dyestuff corresponding thereto, and having polarizing capability and a base material resin and has polarizing capacity. Concretely the color filter is a filter having polarizing capability obtained by combining a yellow dichroic dyestuff, a blue color filter dyestuff having spectral transmission performance, a red dichroic dyestuff, green color filter dyestuff having spectral transmission performance, a blue dichroic dyestuff, and a red color filter dyestuff having spectral transmission performance. Since two functions, i.e., a color filter and polarizing capability are included in a film, light transmissivity can be improved, the polarizing capability can be prevented from being deteriorated due to light dispersion, a film is sufficient for being integrated into a liquid crystal projection television, and a material with high workability can be obtained.

27. 发明专利

JPH0634816A ADHESIVE COMPOSITION FOR POLARIZING FILM TO BE USED FOR LAMINATING POLARIZER AND PROTECTIVE FILM AND METHOD FOR LAMINATING POLARIZER AND PROTECTIVE FILM BY UTILIZING THIS ADHESIVE COMPOSITION 失效
公开(公告)号：JPH0634816A
公开(公告)日：1994-02-10
申请号：JP19047892
申请日：1992-07-17
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , MISAWA TSUTAYOSHI , IMAI RIHOKO , ITO NAOTO
IPC分类号： B29C65/52 , B29L9/00 , C08J5/12 , C09J129/04 , G02B1/08 , G02B5/30
摘要： PURPOSE:To provide the adhesive compsn. which contains carboxylate, is long in pot life, has an excellent transparency and has an effect of suppressing the bubbles generated or intruded at the time of coating. CONSTITUTION:The water-soluble adhesive compsn. to be used for adhering the polarizer obtd. by using iodine and/or dichromatic dyes for a polyvinyl alcohol(PVA) film which is a base material film and subjecting this film to uniaxial stretching and the protective film consisting of a cellulosic system contains a) >=60wt.% PVA having 1500 to 4000 degrees of polymn. and 96 to 100mol% rate of saponification and b) >=0.01wt.% sodium salt and potassium salt of carboxylic acid having 1 to 22C straight chain or branched hydrocarbon group or cyclic hydrocarbon group in the solid content of the compsn. and contains the solid content of the adhesive at 1 to 20wt.% concn. of water.

28. 发明专利

JPH05295281A 失效
公开(公告)号：JPH05295281A
公开(公告)日：1993-11-09
申请号：JP33858392
申请日：1992-12-18
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , OGISO AKIRA , IMAI RIHOKO , ITO NAOTO
IPC分类号： C09B31/20 , C09B45/28 , G02B5/30
摘要： PURPOSE:To provide a new compound exhibiting reddish purple, bluish purple or blue color, having a high polarizing power and heat-resistance and useful for polarizing film, etc. CONSTITUTION:The compound of formula I [A is a benzene ring or a naphthalene ring having a sulfonic acid group or a sulfonic acid salt group; each of Y and Z is a group of formula II (R is H, methyl, methoxy or ethoxy; R is methyl, methoxy or ethoxy); R is amino, 1-4C alkylamino, phenylamino, etc., bonded to 6- to 7-site of naphthalene ring; X is H, sodium, potassium or lithium], e.g. the compound of formula III. The compound of formula I can be produced by diazotizing a compound of formula IV and coupling to a compound of formula V.

29. 发明专利

JPH0511110A POLARIZING FILM MADE OF UNIAXIALLY ORIENTED POLYETHYLENE NAPHTALATE 失效
公开(公告)号：JPH0511110A
公开(公告)日：1993-01-19
申请号：JP16020491
申请日：1991-07-01
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , OGISO AKIRA , IMAI RIHOKO , ITO NAOTO
IPC分类号： G02B1/04 , G02B5/30
摘要： PURPOSE:To provide the high-performance polarizing film by orienting and incorporating certain specific dichromatic dyes into the polarizing film consisting of polyethylene(PE) naphthalate as the base material of the film. CONSTITUTION:This polarizing film is the polarizing film consisting of the PE naphthalate and the dyes and the dyes contain at least one kind of the dichromatic dyes having a biphenyl group, naphthyl group or anthraquinonyl group. The polarizing film formed by mixing these specific dichromatic dyes with the PE naphthalate is higher in polarization performance, heat resistant dimensional stability, wet heat resistance, etc., than a PE terephalate/dye system and is extremely useful as the polarizing film for liquid crystal display.

30. 发明专利

JPH04327584A PRODUCTION OF ANTHRAQUINONEDICARBOXYLIC ACID ANHYDRIDE 失效
公开(公告)号：JPH04327584A
公开(公告)日：1992-11-17
申请号：JP9658091
申请日：1991-04-26
申请人： MITSUI TOATSU CHEMICALS
发明人： AKAHORI HIROYUKI , MISAWA TSUTAYOSHI , OGISO AKIRA , ITO NAOTO
IPC分类号： C07D307/77
摘要： PURPOSE:To obtain a compound useful as an intermediate for pigment such as disperse dye, near-infrared absorber, dichroic pigment for color liquid crystal display and pigment for polarizing plate in high yield and purity by treating a specific anthraquinone dinitrile in concentrated sulfuric acid at a specific temperature. CONSTITUTION:The objective compound is produced by treating an anthraquinone dinitrile of formula I (R1 is H, amino or OH; R2 is H, amino, OH or halogen; n is 1-4) (e.g. 1,4-dihydroxyanthraquinone-2,3-dinitrile) in sulfuric acid having a concentration of 60-100% (preferably 80-95%) at 50-200 deg.C (preferably 110-140 deg.C) for 3-10hr. The amount of the sulfuric acid is preferably 5-20 pts.wt. per 1 pt.wt. of the compound of formula I.

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